1&period; The specialized design surface version&comma; may print material and so on hotel insignia&comma; telephone use guide&comma; hotel servicing facility&comma; greatly promotes the hotel image&semi;2&period; One key connect &lpar;&plus;10&rpar;3&period; Message light4&period; Convex Message light&comma; look at it anywhere in room5&period; Data socket6&period; DTMF dialing and two way dialing7&period; Volume adjustable8&period; Close Volume9&period;14 digit Stored number and it is can't lost if lost power10&period; Handsfree Volume four level adjustable11&period; The volume of shock ring two level adjustable and open&sol;close12&period; Handsfree&bsol;double re-dial&bsol;R key13&period; Retain music HOLD14&period; Hang up by itself15&period; Wall angle change16&period; Waterproof and moistureproof17&period; Thunder-proof and Anti&lowbar;EMI design